Yes, there are certainly some experts, but also people that have done only dozens to hundreds of hours who have made enormous progress. As for not having time,

Yes, there are certainly some experts, but also people that have done only dozens to hundreds of hours who have made enormous progress. As for not having time, most of these folks have worked up to 2 20 minute sits per day. Myself, I take a single 40 minute walk and meditate each day. Thats not so much especially considering that I'm also getting exercise.